This is the Reds Racing HCX R-Series Horizontal Carburetor. The revolutionary carburetor features a horizontally positioned top end needle that provides a more stable idle, more precise tuning, and higher mid/top end power.

Quality of the carburetor seems good. I got it used. I would love to know the default settings of the needles. I emailed the company..but no response. If anyone knows the turns out from stop on the needles that would be great.